Home / 187,411.30-258,629.97-102,529.78

Finding the Fourth Proportional to 187,411.30, 258,629.97 and 102,529.78

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Solution

The fourth proportional to 187,411.30, 258,629.97 and 102,529.78 is: 141,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,411.30 : 258,629.97 = 102,529.78 : x
  2. Step 2: Convert to fraction form
    187,411.30/258,629.97 = 102,529.78/x
  3. Step 3: Cross multiply
    187,411.30x = 258,629.97 × 102,529.78
  4. Step 4: Simplify right side
    187,411.30x = 26,517,273,925.51
  5. Step 5: Solve for x
    x = 26,517,273,925.51/187,411.30
  6. Step 6: Final answer
    x = 141,492.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.